Independent 2026 Estimator
Sheds & Outbuildings Cost Calculator
Pre-fabricated steel garden sheds, large custom workshops, garages, and detached home studios.
Benchmark Installed Rate (Fair Work CW3)
View Full Trade Hub & Rules$150–$380/m²
Interactive calculator for Sheds & Outbuildings is coming soon. Refer to the benchmark rates below.
Material Price Brackets
Colorbond Garden Shed (Up to 10 sqm)
$110–$180/m²
Pre-fabricated modular steel sheet kit on slab or masonry anchors.
Expected lifespan: 20-25 yrs years
Portal Frame Workshop (20-40 sqm)
$220–$360/m²
Structural C-purlin and portal steel frame suitable for vehicle storage.
Expected lifespan: 40+ yrs years
Habitable Studio / Insulated Shell
$550–$950/m²
Framed, insulated, and weatherproofed outbuilding ready for interior fitout.
Expected lifespan: 50+ yrs years
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